const a = [
  { "date": "2011-10-01", "New York": 63.4, "San Francisco": 62.7, "Austin": 72.2 }, {
    "date": "2011-10-02",
    "New York": 58,
    "San Francisco": 59.9,
    "Austin": 67.7
  }, { "date": "2011-10-03", "New York": 53.3, "San Francisco": 59.1, "Austin": 69.4 }, {
    "date": "2011-10-04",
    "New York": 55.7,
    "San Francisco": 58.8,
    "Austin": 68
  }, { "date": "2011-10-05", "New York": 64.2, "San Francisco": 58.7, "Austin": 72.4 }, {
    "date": "2011-10-06",
    "New York": 58.8,
    "San Francisco": 57,
    "Austin": 77
  }, { "date": "2011-10-07", "New York": 57.9, "San Francisco": 56.7, "Austin": 82.3 }, {
    "date": "2011-10-08",
    "New York": 61.8,
    "San Francisco": 56.8,
    "Austin": 78.9
  }, { "date": "2011-10-09", "New York": 69.3, "San Francisco": 56.7, "Austin": 68.8 }, {
    "date": "2011-10-10",
    "New York": 71.2,
    "San Francisco": 60.1,
    "Austin": 68.7
  }, { "date": "2011-10-11", "New York": 68.7, "San Francisco": 61.1, "Austin": 70.3 }, {
    "date": "2011-10-12",
    "New York": 61.8,
    "San Francisco": 61.5,
    "Austin": 75.3
  }, { "date": "2011-10-13", "New York": 63, "San Francisco": 64.3, "Austin": 76.6 }, {
    "date": "2011-10-14",
    "New York": 66.9,
    "San Francisco": 67.1,
    "Austin": 66.6
  }, { "date": "2011-10-15", "New York": 61.7, "San Francisco": 64.6, "Austin": 68 }, {
    "date": "2011-10-16",
    "New York": 61.8,
    "San Francisco": 61.6,
    "Austin": 70.6
  }, { "date": "2011-10-17", "New York": 62.8, "San Francisco": 61.1, "Austin": 71.1 }, {
    "date": "2011-10-18",
    "New York": 60.8,
    "San Francisco": 59.2,
    "Austin": 70
  }, { "date": "2011-10-19", "New York": 62.1, "San Francisco": 58.9, "Austin": 61.6 }, {
    "date": "2011-10-20",
    "New York": 65.1,
    "San Francisco": 57.2,
    "Austin": 57.4
  }, { "date": "2011-10-21", "New York": 55.6, "San Francisco": 56.4, "Austin": 64.3 }, {
    "date": "2011-10-22",
    "New York": 54.4,
    "San Francisco": 60.7,
    "Austin": 72.4
  }, { "date": "2011-10-23", "New York": 54.4, "San Francisco": 65.1, "Austin": 72.4 }, {
    "date": "2011-10-24",
    "New York": 54.8,
    "San Francisco": 60.9,
    "Austin": 72.5
  }, { "date": "2011-10-25", "New York": 57.9, "San Francisco": 56.1, "Austin": 72.7 }, {
    "date": "2011-10-26",
    "New York": 54.6,
    "San Francisco": 54.6,
    "Austin": 73.4
  }, { "date": "2011-10-27", "New York": 54.4, "San Francisco": 56.1, "Austin": 70.7 }, {
    "date": "2011-10-28",
    "New York": 42.5,
    "San Francisco": 58.1,
    "Austin": 56.8
  }, { "date": "2011-10-29", "New York": 40.9, "San Francisco": 57.5, "Austin": 51 }, {
    "date": "2011-10-30",
    "New York": 38.6,
    "San Francisco": 57.7,
    "Austin": 54.9
  }, { "date": "2011-10-31", "New York": 44.2, "San Francisco": 55.1, "Austin": 58.8 }, {
    "date": "2011-11-01",
    "New York": 49.6,
    "San Francisco": 57.9,
    "Austin": 62.6
  }, { "date": "2011-11-02", "New York": 47.2, "San Francisco": 64.6, "Austin": 71 }, {
    "date": "2011-11-03",
    "New York": 50.1,
    "San Francisco": 56.2,
    "Austin": 58.4
  }, { "date": "2011-11-04", "New York": 50.1, "San Francisco": 50.5, "Austin": 45.1 }, {
    "date": "2011-11-05",
    "New York": 43.5,
    "San Francisco": 51.3,
    "Austin": 52.2
  }, { "date": "2011-11-06", "New York": 43.8, "San Francisco": 52.6, "Austin": 73 }, {
    "date": "2011-11-07",
    "New York": 48.9,
    "San Francisco": 51.4,
    "Austin": 75.4
  }, { "date": "2011-11-08", "New York": 55.5, "San Francisco": 50.6, "Austin": 72.1 }, {
    "date": "2011-11-09",
    "New York": 53.7,
    "San Francisco": 54.6,
    "Austin": 56.6
  }, { "date": "2011-11-10", "New York": 57.7, "San Francisco": 55.6, "Austin": 55.4 }, {
    "date": "2011-11-11",
    "New York": 48.5,
    "San Francisco": 53.9,
    "Austin": 46.7
  }, { "date": "2011-11-12", "New York": 46.8, "San Francisco": 54, "Austin": 62 }, {
    "date": "2011-11-13",
    "New York": 51.1,
    "San Francisco": 53.8,
    "Austin": 71.6
  }, { "date": "2011-11-14", "New York": 56.8, "San Francisco": 53.5, "Austin": 75.5 }, {
    "date": "2011-11-15",
    "New York": 59.7,
    "San Francisco": 53.4,
    "Austin": 72.1
  }, { "date": "2011-11-16", "New York": 56.5, "San Francisco": 52.2, "Austin": 65.7 }, {
    "date": "2011-11-17",
    "New York": 49.6,
    "San Francisco": 52.7,
    "Austin": 56.8
  }, { "date": "2011-11-18", "New York": 41.5, "San Francisco": 53.1, "Austin": 49.9 }, {
    "date": "2011-11-19",
    "New York": 44.3,
    "San Francisco": 49,
    "Austin": 71.7
  }, { "date": "2011-11-20", "New York": 54, "San Francisco": 50.4, "Austin": 77.7 }, {
    "date": "2011-11-21",
    "New York": 54.1,
    "San Francisco": 51.1,
    "Austin": 76.4
  }, { "date": "2011-11-22", "New York": 49.4, "San Francisco": 52.3, "Austin": 68.8 }, {
    "date": "2011-11-23",
    "New York": 50,
    "San Francisco": 54.6,
    "Austin": 57
  }, { "date": "2011-11-24", "New York": 44, "San Francisco": 55.1, "Austin": 55.5 }, {
    "date": "2011-11-25",
    "New York": 50.3,
    "San Francisco": 51.5,
    "Austin": 61.6
  }, { "date": "2011-11-26", "New York": 52.1, "San Francisco": 53.6, "Austin": 64.1 }, {
    "date": "2011-11-27",
    "New York": 49.6,
    "San Francisco": 52.3,
    "Austin": 51.1
  }, { "date": "2011-11-28", "New York": 57.2, "San Francisco": 51, "Austin": 43 }, {
    "date": "2011-11-29",
    "New York": 59.1,
    "San Francisco": 49.5,
    "Austin": 46.4
  }, { "date": "2011-11-30", "New York": 50.6, "San Francisco": 49.8, "Austin": 48 }, {
    "date": "2011-12-01",
    "New York": 44.3,
    "San Francisco": 60.4,
    "Austin": 48.1
  }, { "date": "2011-12-02", "New York": 43.9, "San Francisco": 62.2, "Austin": 60.6 }, {
    "date": "2011-12-03",
    "New York": 42.1,
    "San Francisco": 58.3,
    "Austin": 62.6
  }, { "date": "2011-12-04", "New York": 43.9, "San Francisco": 52.7, "Austin": 57.1 }, {
    "date": "2011-12-05",
    "New York": 50.2,
    "San Francisco": 51.5,
    "Austin": 44.2
  }, { "date": "2011-12-06", "New York": 54.2, "San Francisco": 49.9, "Austin": 37.4 }, {
    "date": "2011-12-07",
    "New York": 54.6,
    "San Francisco": 48.6,
    "Austin": 35
  }, { "date": "2011-12-08", "New York": 43.4, "San Francisco": 46.4, "Austin": 37 }, {
    "date": "2011-12-09",
    "New York": 42.2,
    "San Francisco": 49.8,
    "Austin": 45.4
  }, { "date": "2011-12-10", "New York": 45, "San Francisco": 52.1, "Austin": 50.7 }, {
    "date": "2011-12-11",
    "New York": 33.8,
    "San Francisco": 48.8,
    "Austin": 48.6
  }, { "date": "2011-12-12", "New York": 36.8, "San Francisco": 47.4, "Austin": 52.2 }, {
    "date": "2011-12-13",
    "New York": 38.6,
    "San Francisco": 47.2,
    "Austin": 60.8
  }, { "date": "2011-12-14", "New York": 41.9, "San Francisco": 46.1, "Austin": 70 }, {
    "date": "2011-12-15",
    "New York": 49.6,
    "San Francisco": 48.8,
    "Austin": 64.2
  }, { "date": "2011-12-16", "New York": 50.2, "San Francisco": 47.9, "Austin": 50.9 }, {
    "date": "2011-12-17",
    "New York": 40.6,
    "San Francisco": 49.8,
    "Austin": 51.6
  }, { "date": "2011-12-18", "New York": 29.1, "San Francisco": 49.1, "Austin": 55.2 }, {
    "date": "2011-12-19",
    "New York": 33.7,
    "San Francisco": 48.3,
    "Austin": 62.1
  }, { "date": "2011-12-20", "New York": 45.8, "San Francisco": 49.3, "Austin": 56.3 }, {
    "date": "2011-12-21",
    "New York": 47.4,
    "San Francisco": 48.4,
    "Austin": 47.2
  }, { "date": "2011-12-22", "New York": 54.4, "San Francisco": 53.3, "Austin": 52.3 }, {
    "date": "2011-12-23",
    "New York": 47.8,
    "San Francisco": 47.5,
    "Austin": 45.2
  }, { "date": "2011-12-24", "New York": 34.9, "San Francisco": 47.9, "Austin": 43.6 }, {
    "date": "2011-12-25",
    "New York": 35.9,
    "San Francisco": 48.9,
    "Austin": 42.9
  }, { "date": "2011-12-26", "New York": 43.6, "San Francisco": 45.9, "Austin": 48.2 }, {
    "date": "2011-12-27",
    "New York": 42.9,
    "San Francisco": 47.2,
    "Austin": 45.4
  }, { "date": "2011-12-28", "New York": 46.2, "San Francisco": 48.9, "Austin": 44.2 }, {
    "date": "2011-12-29",
    "New York": 30.8,
    "San Francisco": 50.9,
    "Austin": 50.4
  }, { "date": "2011-12-30", "New York": 40.8, "San Francisco": 52.9, "Austin": 52.4 }, {
    "date": "2011-12-31",
    "New York": 49.8,
    "San Francisco": 50.1,
    "Austin": 53.5
  }, { "date": "2012-01-01", "New York": 46.3, "San Francisco": 53.9, "Austin": 55.9 }, {
    "date": "2012-01-02",
    "New York": 43.2,
    "San Francisco": 53.1,
    "Austin": 48.2
  }, { "date": "2012-01-03", "New York": 30.3, "San Francisco": 49.7, "Austin": 41 }, {
    "date": "2012-01-04",
    "New York": 19.2,
    "San Francisco": 52.7,
    "Austin": 48.9
  }, { "date": "2012-01-05", "New York": 32.1, "San Francisco": 52.6, "Austin": 54.8 }, {
    "date": "2012-01-06",
    "New York": 41.2,
    "San Francisco": 49,
    "Austin": 61.2
  }, { "date": "2012-01-07", "New York": 47, "San Francisco": 51, "Austin": 59.7 }, {
    "date": "2012-01-08",
    "New York": 46,
    "San Francisco": 56.8,
    "Austin": 52.5
  }, { "date": "2012-01-09", "New York": 34.7, "San Francisco": 52.3, "Austin": 54 }, {
    "date": "2012-01-10",
    "New York": 39.4,
    "San Francisco": 51.6,
    "Austin": 47.7
  }, { "date": "2012-01-11", "New York": 40.4, "San Francisco": 49.8, "Austin": 49.2 }, {
    "date": "2012-01-12",
    "New York": 45.4,
    "San Francisco": 51.9,
    "Austin": 48.4
  }, { "date": "2012-01-13", "New York": 40.7, "San Francisco": 53.7, "Austin": 40.2 }, {
    "date": "2012-01-14",
    "New York": 30.4,
    "San Francisco": 52.9,
    "Austin": 43.9
  }, { "date": "2012-01-15", "New York": 23.9, "San Francisco": 49.7, "Austin": 45.2 }, {
    "date": "2012-01-16",
    "New York": 22.6,
    "San Francisco": 45.3,
    "Austin": 65
  }, { "date": "2012-01-17", "New York": 39.8, "San Francisco": 43.6, "Austin": 68.2 }, {
    "date": "2012-01-18",
    "New York": 43.2,
    "San Francisco": 45,
    "Austin": 47.5
  }, { "date": "2012-01-19", "New York": 26.3, "San Francisco": 47.3, "Austin": 57.1 }, {
    "date": "2012-01-20",
    "New York": 32.8,
    "San Francisco": 51.4,
    "Austin": 61.9
  }, { "date": "2012-01-21", "New York": 27.4, "San Francisco": 53.7, "Austin": 54.6 }, {
    "date": "2012-01-22",
    "New York": 25,
    "San Francisco": 48.3,
    "Austin": 56.7
  }, { "date": "2012-01-23", "New York": 39.4, "San Francisco": 52.9, "Austin": 54.4 }, {
    "date": "2012-01-24",
    "New York": 48.7,
    "San Francisco": 49.1,
    "Austin": 52.7
  }, { "date": "2012-01-25", "New York": 43, "San Francisco": 52.1, "Austin": 61.8 }, {
    "date": "2012-01-26",
    "New York": 37.1,
    "San Francisco": 53.6,
    "Austin": 55
  }, { "date": "2012-01-27", "New York": 48.2, "San Francisco": 50.4, "Austin": 50.7 }, {
    "date": "2012-01-28",
    "New York": 43.7,
    "San Francisco": 50.3,
    "Austin": 52.9
  }, { "date": "2012-01-29", "New York": 40.1, "San Francisco": 53.8, "Austin": 44.4 }, {
    "date": "2012-01-30",
    "New York": 38,
    "San Francisco": 51.9,
    "Austin": 49.1
  }, { "date": "2012-01-31", "New York": 43.5, "San Francisco": 50, "Austin": 62.8 }, {
    "date": "2012-02-01",
    "New York": 50.4,
    "San Francisco": 50,
    "Austin": 64.6
  }, { "date": "2012-02-02", "New York": 45.8, "San Francisco": 51.3, "Austin": 61.1 }, {
    "date": "2012-02-03",
    "New York": 37.5,
    "San Francisco": 51.5,
    "Austin": 70
  }, { "date": "2012-02-04", "New York": 40.8, "San Francisco": 52, "Austin": 61.3 }, {
    "date": "2012-02-05",
    "New York": 36.5,
    "San Francisco": 53.8,
    "Austin": 48.2
  }, { "date": "2012-02-06", "New York": 39.1, "San Francisco": 54.6, "Austin": 44.2 }, {
    "date": "2012-02-07",
    "New York": 43.2,
    "San Francisco": 54.3,
    "Austin": 51.3
  }, { "date": "2012-02-08", "New York": 36.5, "San Francisco": 51.9, "Austin": 49.2 }, {
    "date": "2012-02-09",
    "New York": 36.5,
    "San Francisco": 53.8,
    "Austin": 45.7
  }, { "date": "2012-02-10", "New York": 38.3, "San Francisco": 53.9, "Austin": 54.1 }, {
    "date": "2012-02-11",
    "New York": 36.9,
    "San Francisco": 52.3,
    "Austin": 44.9
  }, { "date": "2012-02-12", "New York": 29.7, "San Francisco": 50.1, "Austin": 36.5 }, {
    "date": "2012-02-13",
    "New York": 33.1,
    "San Francisco": 49.5,
    "Austin": 44.8
  }, { "date": "2012-02-14", "New York": 39.6, "San Francisco": 48.6, "Austin": 52.3 }, {
    "date": "2012-02-15",
    "New York": 42.3,
    "San Francisco": 49.9,
    "Austin": 68
  }, { "date": "2012-02-16", "New York": 39.7, "San Francisco": 52.4, "Austin": 54.6 }, {
    "date": "2012-02-17",
    "New York": 46,
    "San Francisco": 49.9,
    "Austin": 53.8
  }, { "date": "2012-02-18", "New York": 41.2, "San Francisco": 51.6, "Austin": 56.2 }, {
    "date": "2012-02-19",
    "New York": 39.8,
    "San Francisco": 47.8,
    "Austin": 50.8
  }, { "date": "2012-02-20", "New York": 38.1, "San Francisco": 48.7, "Austin": 53 }, {
    "date": "2012-02-21",
    "New York": 37.1,
    "San Francisco": 49.7,
    "Austin": 61
  }, { "date": "2012-02-22", "New York": 45.5, "San Francisco": 53.4, "Austin": 68.8 }, {
    "date": "2012-02-23",
    "New York": 50.6,
    "San Francisco": 54.1,
    "Austin": 69.4
  }, { "date": "2012-02-24", "New York": 42.7, "San Francisco": 55.9, "Austin": 59.3 }, {
    "date": "2012-02-25",
    "New York": 42.6,
    "San Francisco": 51.7,
    "Austin": 47.2
  }, { "date": "2012-02-26", "New York": 36.9, "San Francisco": 47.7, "Austin": 47.7 }, {
    "date": "2012-02-27",
    "New York": 40.9,
    "San Francisco": 45.4,
    "Austin": 61.9
  }, { "date": "2012-02-28", "New York": 45.9, "San Francisco": 47, "Austin": 67.2 }, {
    "date": "2012-02-29",
    "New York": 40.7,
    "San Francisco": 49.8,
    "Austin": 70.1
  }, { "date": "2012-03-01", "New York": 41.3, "San Francisco": 48.9, "Austin": 62.1 }, {
    "date": "2012-03-02",
    "New York": 36.8,
    "San Francisco": 48.1,
    "Austin": 72.7
  }, { "date": "2012-03-03", "New York": 47.6, "San Francisco": 50.7, "Austin": 59 }, {
    "date": "2012-03-04",
    "New York": 44.2,
    "San Francisco": 55,
    "Austin": 51.8
  }, { "date": "2012-03-05", "New York": 38.5, "San Francisco": 48.8, "Austin": 55 }, {
    "date": "2012-03-06",
    "New York": 32.9,
    "San Francisco": 48.4,
    "Austin": 61.8
  }, { "date": "2012-03-07", "New York": 43.3, "San Francisco": 49.9, "Austin": 67.1 }, {
    "date": "2012-03-08",
    "New York": 51.2,
    "San Francisco": 49.2,
    "Austin": 72
  }, { "date": "2012-03-09", "New York": 47.8, "San Francisco": 51.7, "Austin": 46.4 }, {
    "date": "2012-03-10",
    "New York": 37.2,
    "San Francisco": 49.3,
    "Austin": 46.7
  }, { "date": "2012-03-11", "New York": 42.9, "San Francisco": 50, "Austin": 56.9 }, {
    "date": "2012-03-12",
    "New York": 48.8,
    "San Francisco": 48.6,
    "Austin": 61.9
  }, { "date": "2012-03-13", "New York": 52.6, "San Francisco": 53.9, "Austin": 68.8 }, {
    "date": "2012-03-14",
    "New York": 60.5,
    "San Francisco": 55.2,
    "Austin": 71.9
  }, { "date": "2012-03-15", "New York": 47.2, "San Francisco": 55.9, "Austin": 72 }, {
    "date": "2012-03-16",
    "New York": 44.7,
    "San Francisco": 54.6,
    "Austin": 72.5
  }, { "date": "2012-03-17", "New York": 48.2, "San Francisco": 48.2, "Austin": 71.7 }, {
    "date": "2012-03-18",
    "New York": 48.2,
    "San Francisco": 47.1,
    "Austin": 71.1
  }, { "date": "2012-03-19", "New York": 53.1, "San Francisco": 45.8, "Austin": 73 }, {
    "date": "2012-03-20",
    "New York": 57.8,
    "San Francisco": 49.7,
    "Austin": 63.8
  }, { "date": "2012-03-21", "New York": 57.5, "San Francisco": 51.4, "Austin": 60 }, {
    "date": "2012-03-22",
    "New York": 57.3,
    "San Francisco": 51.4,
    "Austin": 62.3
  }, { "date": "2012-03-23", "New York": 61.7, "San Francisco": 48.4, "Austin": 61.1 }, {
    "date": "2012-03-24",
    "New York": 55.8,
    "San Francisco": 49,
    "Austin": 62
  }, { "date": "2012-03-25", "New York": 48.4, "San Francisco": 46.4, "Austin": 64.6 }, {
    "date": "2012-03-26",
    "New York": 49.8,
    "San Francisco": 49.7,
    "Austin": 66
  }, { "date": "2012-03-27", "New York": 39.6, "San Francisco": 54.1, "Austin": 65.8 }, {
    "date": "2012-03-28",
    "New York": 49.7,
    "San Francisco": 54.6,
    "Austin": 69.2
  }, { "date": "2012-03-29", "New York": 56.8, "San Francisco": 52.3, "Austin": 69.5 }, {
    "date": "2012-03-30",
    "New York": 46.5,
    "San Francisco": 54.5,
    "Austin": 73.5
  }, { "date": "2012-03-31", "New York": 42.2, "San Francisco": 56.2, "Austin": 73.9 }, {
    "date": "2012-04-01",
    "New York": 45.3,
    "San Francisco": 51.1,
    "Austin": 75.3
  }, { "date": "2012-04-02", "New York": 48.1, "San Francisco": 50.5, "Austin": 75.4 }, {
    "date": "2012-04-03",
    "New York": 51.2,
    "San Francisco": 52.2,
    "Austin": 77.3
  }, { "date": "2012-04-04", "New York": 61, "San Francisco": 50.6, "Austin": 67 }, {
    "date": "2012-04-05",
    "New York": 50.7,
    "San Francisco": 47.9,
    "Austin": 71.1
  }, { "date": "2012-04-06", "New York": 48, "San Francisco": 47.4, "Austin": 70.4 }, {
    "date": "2012-04-07",
    "New York": 51.1,
    "San Francisco": 49.4,
    "Austin": 73.6
  }, { "date": "2012-04-08", "New York": 55.7, "San Francisco": 50, "Austin": 71.1 }, {
    "date": "2012-04-09",
    "New York": 58.3,
    "San Francisco": 51.3,
    "Austin": 70
  }, { "date": "2012-04-10", "New York": 55, "San Francisco": 53.8, "Austin": 69 }, {
    "date": "2012-04-11",
    "New York": 49,
    "San Francisco": 52.9,
    "Austin": 69.2
  }, { "date": "2012-04-12", "New York": 51.7, "San Francisco": 53.9, "Austin": 74.5 }, {
    "date": "2012-04-13",
    "New York": 53.1,
    "San Francisco": 50.2,
    "Austin": 73.4
  }, { "date": "2012-04-14", "New York": 55.2, "San Francisco": 50.9, "Austin": 76 }, {
    "date": "2012-04-15",
    "New York": 62.3,
    "San Francisco": 51.5,
    "Austin": 74.5
  }, { "date": "2012-04-16", "New York": 62.9, "San Francisco": 51.9, "Austin": 63.6 }, {
    "date": "2012-04-17",
    "New York": 69.3,
    "San Francisco": 53.2,
    "Austin": 67.3
  }, { "date": "2012-04-18", "New York": 59, "San Francisco": 53, "Austin": 65.1 }, {
    "date": "2012-04-19",
    "New York": 54.1,
    "San Francisco": 55.1,
    "Austin": 67.9
  }, { "date": "2012-04-20", "New York": 56.5, "San Francisco": 55.8, "Austin": 68.9 }, {
    "date": "2012-04-21",
    "New York": 58.2,
    "San Francisco": 58,
    "Austin": 65.1
  }, { "date": "2012-04-22", "New York": 52.4, "San Francisco": 52.8, "Austin": 65.4 }, {
    "date": "2012-04-23",
    "New York": 51.6,
    "San Francisco": 55.1,
    "Austin": 70.1
  }, { "date": "2012-04-24", "New York": 49.3, "San Francisco": 57.9, "Austin": 67 }, {
    "date": "2012-04-25",
    "New York": 52.5,
    "San Francisco": 57.5,
    "Austin": 75.4
  }, { "date": "2012-04-26", "New York": 50.5, "San Francisco": 55.3, "Austin": 77.5 }, {
    "date": "2012-04-27",
    "New York": 51.9,
    "San Francisco": 53.5,
    "Austin": 77
  }, { "date": "2012-04-28", "New York": 47.4, "San Francisco": 54.7, "Austin": 77.7 }, {
    "date": "2012-04-29",
    "New York": 54.1,
    "San Francisco": 54,
    "Austin": 77.7
  }, { "date": "2012-04-30", "New York": 51.9, "San Francisco": 53.4, "Austin": 77.7 }, {
    "date": "2012-05-01",
    "New York": 57.4,
    "San Francisco": 52.7,
    "Austin": 77
  }, { "date": "2012-05-02", "New York": 53.7, "San Francisco": 50.7, "Austin": 77.9 }, {
    "date": "2012-05-03",
    "New York": 53.1,
    "San Francisco": 52.6,
    "Austin": 79.1
  }, { "date": "2012-05-04", "New York": 57.2, "San Francisco": 53.4, "Austin": 80.1 }, {
    "date": "2012-05-05",
    "New York": 57,
    "San Francisco": 53.1,
    "Austin": 82.1
  }, { "date": "2012-05-06", "New York": 56.6, "San Francisco": 56.5, "Austin": 79 }, {
    "date": "2012-05-07",
    "New York": 54.6,
    "San Francisco": 55.3,
    "Austin": 79.8
  }, { "date": "2012-05-08", "New York": 57.9, "San Francisco": 52, "Austin": 70 }, {
    "date": "2012-05-09",
    "New York": 59.2,
    "San Francisco": 52.4,
    "Austin": 69.8
  }, { "date": "2012-05-10", "New York": 61.1, "San Francisco": 53.4, "Austin": 71.3 }, {
    "date": "2012-05-11",
    "New York": 59.7,
    "San Francisco": 53.1,
    "Austin": 69.4
  }, { "date": "2012-05-12", "New York": 64.1, "San Francisco": 49.9, "Austin": 72 }, {
    "date": "2012-05-13",
    "New York": 65.3,
    "San Francisco": 52,
    "Austin": 72.4
  }, { "date": "2012-05-14", "New York": 64.2, "San Francisco": 56, "Austin": 72.5 }, {
    "date": "2012-05-15",
    "New York": 62,
    "San Francisco": 53,
    "Austin": 67.6
  }, { "date": "2012-05-16", "New York": 63.8, "San Francisco": 51, "Austin": 69 }, {
    "date": "2012-05-17",
    "New York": 64.5,
    "San Francisco": 51.4,
    "Austin": 72.7
  }, { "date": "2012-05-18", "New York": 61, "San Francisco": 52.2, "Austin": 73.7 }, {
    "date": "2012-05-19",
    "New York": 62.6,
    "San Francisco": 52.4,
    "Austin": 77.5
  }, { "date": "2012-05-20", "New York": 66.2, "San Francisco": 54.5, "Austin": 75.8 }, {
    "date": "2012-05-21",
    "New York": 62.7,
    "San Francisco": 52.8,
    "Austin": 76.9
  }, { "date": "2012-05-22", "New York": 63.7, "San Francisco": 53.9, "Austin": 78.8 }, {
    "date": "2012-05-23",
    "New York": 66.4,
    "San Francisco": 56.5,
    "Austin": 77.7
  }, { "date": "2012-05-24", "New York": 64.5, "San Francisco": 54.7, "Austin": 80.6 }, {
    "date": "2012-05-25",
    "New York": 65.4,
    "San Francisco": 52.5,
    "Austin": 81.4
  }, { "date": "2012-05-26", "New York": 69.4, "San Francisco": 52.1, "Austin": 82.3 }, {
    "date": "2012-05-27",
    "New York": 71.9,
    "San Francisco": 52.2,
    "Austin": 80.3
  }, { "date": "2012-05-28", "New York": 74.4, "San Francisco": 52.9, "Austin": 80.3 }, {
    "date": "2012-05-29",
    "New York": 75.9,
    "San Francisco": 52.1,
    "Austin": 82.2
  }, { "date": "2012-05-30", "New York": 72.9, "San Francisco": 52.1, "Austin": 81.9 }, {
    "date": "2012-05-31",
    "New York": 72.5,
    "San Francisco": 53.3,
    "Austin": 82.4
  }, { "date": "2012-06-01", "New York": 67.2, "San Francisco": 54.8, "Austin": 77.9 }, {
    "date": "2012-06-02",
    "New York": 68.3,
    "San Francisco": 54,
    "Austin": 81.1
  }, { "date": "2012-06-03", "New York": 67.7, "San Francisco": 52.3, "Austin": 82.2 }, {
    "date": "2012-06-04",
    "New York": 61.9,
    "San Francisco": 55.3,
    "Austin": 81.2
  }, { "date": "2012-06-05", "New York": 58.3, "San Francisco": 53.5, "Austin": 83 }, {
    "date": "2012-06-06",
    "New York": 61.7,
    "San Francisco": 54.1,
    "Austin": 83.2
  }, { "date": "2012-06-07", "New York": 66.7, "San Francisco": 53.9, "Austin": 82.1 }, {
    "date": "2012-06-08",
    "New York": 68.7,
    "San Francisco": 54.4,
    "Austin": 77.5
  }, { "date": "2012-06-09", "New York": 72.2, "San Francisco": 55, "Austin": 77.9 }, {
    "date": "2012-06-10",
    "New York": 72.6,
    "San Francisco": 60,
    "Austin": 82.9
  }, { "date": "2012-06-11", "New York": 69.2, "San Francisco": 57.2, "Austin": 86.8 }, {
    "date": "2012-06-12",
    "New York": 66.9,
    "San Francisco": 55.1,
    "Austin": 85.3
  }, { "date": "2012-06-13", "New York": 66.7, "San Francisco": 53.3, "Austin": 76.9 }, {
    "date": "2012-06-14",
    "New York": 67.7,
    "San Francisco": 53.4,
    "Austin": 84.5
  }, { "date": "2012-06-15", "New York": 68.5, "San Francisco": 54.6, "Austin": 84.4 }, {
    "date": "2012-06-16",
    "New York": 67.5,
    "San Francisco": 57,
    "Austin": 83.8
  }, { "date": "2012-06-17", "New York": 64.2, "San Francisco": 55.6, "Austin": 82.5 }, {
    "date": "2012-06-18",
    "New York": 61.7,
    "San Francisco": 52.5,
    "Austin": 82.9
  }, { "date": "2012-06-19", "New York": 66.4, "San Francisco": 53.9, "Austin": 82.5 }, {
    "date": "2012-06-20",
    "New York": 77.9,
    "San Francisco": 55.3,
    "Austin": 81.3
  }, { "date": "2012-06-21", "New York": 88.3, "San Francisco": 53.3, "Austin": 80.8 }, {
    "date": "2012-06-22",
    "New York": 82.2,
    "San Francisco": 54.1,
    "Austin": 81.7
  }, { "date": "2012-06-23", "New York": 77, "San Francisco": 55.2, "Austin": 83.9 }, {
    "date": "2012-06-24",
    "New York": 75.4,
    "San Francisco": 55.8,
    "Austin": 85.5
  }, { "date": "2012-06-25", "New York": 70.9, "San Francisco": 56.8, "Austin": 87.2 }, {
    "date": "2012-06-26",
    "New York": 65.9,
    "San Francisco": 57.5,
    "Austin": 88
  }, { "date": "2012-06-27", "New York": 73.5, "San Francisco": 57.7, "Austin": 89.6 }, {
    "date": "2012-06-28",
    "New York": 77.4,
    "San Francisco": 56.6,
    "Austin": 86.7
  }, { "date": "2012-06-29", "New York": 79.6, "San Francisco": 56.4, "Austin": 85.3 }, {
    "date": "2012-06-30",
    "New York": 84.2,
    "San Francisco": 58.4,
    "Austin": 81.7
  }, { "date": "2012-07-01", "New York": 81.8, "San Francisco": 58.8, "Austin": 78.5 }, {
    "date": "2012-07-02",
    "New York": 82.5,
    "San Francisco": 56.4,
    "Austin": 83.1
  }, { "date": "2012-07-03", "New York": 80.2, "San Francisco": 56.5, "Austin": 83.1 }, {
    "date": "2012-07-04",
    "New York": 77.8,
    "San Francisco": 55.8,
    "Austin": 84.5
  }, { "date": "2012-07-05", "New York": 86.1, "San Francisco": 54.8, "Austin": 84.6 }, {
    "date": "2012-07-06",
    "New York": 79.9,
    "San Francisco": 54.9,
    "Austin": 84.2
  }, { "date": "2012-07-07", "New York": 83.5, "San Francisco": 54.7, "Austin": 86.7 }, {
    "date": "2012-07-08",
    "New York": 81.5,
    "San Francisco": 52.8,
    "Austin": 84.3
  }, { "date": "2012-07-09", "New York": 77.8, "San Francisco": 53.7, "Austin": 83.7 }, {
    "date": "2012-07-10",
    "New York": 76.1,
    "San Francisco": 53.1,
    "Austin": 77.1
  }, { "date": "2012-07-11", "New York": 76.3, "San Francisco": 52.7, "Austin": 77.4 }, {
    "date": "2012-07-12",
    "New York": 75.8,
    "San Francisco": 52,
    "Austin": 80.6
  }, { "date": "2012-07-13", "New York": 77.2, "San Francisco": 53.4, "Austin": 81.4 }, {
    "date": "2012-07-14",
    "New York": 79.3,
    "San Francisco": 54,
    "Austin": 80.2
  }, { "date": "2012-07-15", "New York": 78.9, "San Francisco": 54, "Austin": 81.8 }, {
    "date": "2012-07-16",
    "New York": 79.6,
    "San Francisco": 54.5,
    "Austin": 77.3
  }, { "date": "2012-07-17", "New York": 83.3, "San Francisco": 56.7, "Austin": 80.8 }, {
    "date": "2012-07-18",
    "New York": 84.3,
    "San Francisco": 57.5,
    "Austin": 81.6
  }, { "date": "2012-07-19", "New York": 75.1, "San Francisco": 57.1, "Austin": 80.9 }, {
    "date": "2012-07-20",
    "New York": 68.4,
    "San Francisco": 58.1,
    "Austin": 83.9
  }, { "date": "2012-07-21", "New York": 68.4, "San Francisco": 57.6, "Austin": 85.6 }, {
    "date": "2012-07-22",
    "New York": 72.2,
    "San Francisco": 56,
    "Austin": 83.6
  }, { "date": "2012-07-23", "New York": 75.6, "San Francisco": 56.6, "Austin": 84 }, {
    "date": "2012-07-24",
    "New York": 82.6,
    "San Francisco": 57.8,
    "Austin": 83
  }, { "date": "2012-07-25", "New York": 78.4, "San Francisco": 57.5, "Austin": 84.8 }, {
    "date": "2012-07-26",
    "New York": 77,
    "San Francisco": 56.4,
    "Austin": 84.4
  }, { "date": "2012-07-27", "New York": 79.4, "San Francisco": 55.3, "Austin": 84.3 }, {
    "date": "2012-07-28",
    "New York": 77.4,
    "San Francisco": 55,
    "Austin": 83.9
  }, { "date": "2012-07-29", "New York": 72.5, "San Francisco": 55.6, "Austin": 85 }, {
    "date": "2012-07-30",
    "New York": 72.9,
    "San Francisco": 55.6,
    "Austin": 84.9
  }, { "date": "2012-07-31", "New York": 73.6, "San Francisco": 55.9, "Austin": 86.3 }, {
    "date": "2012-08-01",
    "New York": 75,
    "San Francisco": 55.4,
    "Austin": 86.5
  }, { "date": "2012-08-02", "New York": 77.7, "San Francisco": 54.4, "Austin": 85.8 }, {
    "date": "2012-08-03",
    "New York": 79.7,
    "San Francisco": 53.7,
    "Austin": 85.3
  }, { "date": "2012-08-04", "New York": 79.6, "San Francisco": 54.1, "Austin": 86 }, {
    "date": "2012-08-05",
    "New York": 81.5,
    "San Francisco": 57.8,
    "Austin": 84.2
  }, { "date": "2012-08-06", "New York": 80, "San Francisco": 58.2, "Austin": 81.9 }, {
    "date": "2012-08-07",
    "New York": 75.7,
    "San Francisco": 58,
    "Austin": 86.5
  }, { "date": "2012-08-08", "New York": 77.8, "San Francisco": 57, "Austin": 86.1 }, {
    "date": "2012-08-09",
    "New York": 78.6,
    "San Francisco": 55,
    "Austin": 86.8
  }, { "date": "2012-08-10", "New York": 77.8, "San Francisco": 54.8, "Austin": 88 }, {
    "date": "2012-08-11",
    "New York": 78.5,
    "San Francisco": 53,
    "Austin": 85.1
  }, { "date": "2012-08-12", "New York": 78.8, "San Francisco": 52.5, "Austin": 87.4 }, {
    "date": "2012-08-13",
    "New York": 78.6,
    "San Francisco": 53.3,
    "Austin": 88
  }, { "date": "2012-08-14", "New York": 76.8, "San Francisco": 53.9, "Austin": 88 }, {
    "date": "2012-08-15",
    "New York": 76.7,
    "San Francisco": 56.2,
    "Austin": 87.2
  }, { "date": "2012-08-16", "New York": 75.9, "San Francisco": 57.1, "Austin": 86.1 }, {
    "date": "2012-08-17",
    "New York": 77.6,
    "San Francisco": 55.3,
    "Austin": 86.8
  }, { "date": "2012-08-18", "New York": 72.6, "San Francisco": 56.2, "Austin": 84.9 }, {
    "date": "2012-08-19",
    "New York": 70.4,
    "San Francisco": 54.3,
    "Austin": 76.8
  }, { "date": "2012-08-20", "New York": 71.8, "San Francisco": 53.1, "Austin": 80.6 }, {
    "date": "2012-08-21",
    "New York": 73.6,
    "San Francisco": 53.4,
    "Austin": 80
  }, { "date": "2012-08-22", "New York": 74.7, "San Francisco": 54.5, "Austin": 78.2 }, {
    "date": "2012-08-23",
    "New York": 74.6,
    "San Francisco": 55.7,
    "Austin": 79.1
  }, { "date": "2012-08-24", "New York": 76, "San Francisco": 54.8, "Austin": 81.9 }, {
    "date": "2012-08-25",
    "New York": 76.2,
    "San Francisco": 53.8,
    "Austin": 84.7
  }, { "date": "2012-08-26", "New York": 73.4, "San Francisco": 56.5, "Austin": 83.5 }, {
    "date": "2012-08-27",
    "New York": 74.6,
    "San Francisco": 58.3,
    "Austin": 82.1
  }, { "date": "2012-08-28", "New York": 79.4, "San Francisco": 58.7, "Austin": 84 }, {
    "date": "2012-08-29",
    "New York": 74.7,
    "San Francisco": 57.5,
    "Austin": 85.7
  }, { "date": "2012-08-30", "New York": 73.5, "San Francisco": 55.9, "Austin": 87.2 }, {
    "date": "2012-08-31",
    "New York": 77.9,
    "San Francisco": 55.4,
    "Austin": 82.9
  }, { "date": "2012-09-01", "New York": 80.7, "San Francisco": 55.7, "Austin": 84.8 }, {
    "date": "2012-09-02",
    "New York": 75.1,
    "San Francisco": 53.1,
    "Austin": 83.9
  }, { "date": "2012-09-03", "New York": 73.5, "San Francisco": 53.5, "Austin": 85.5 }, {
    "date": "2012-09-04",
    "New York": 73.5,
    "San Francisco": 52.5,
    "Austin": 86.4
  }, { "date": "2012-09-05", "New York": 77.7, "San Francisco": 54.5, "Austin": 85.8 }, {
    "date": "2012-09-06",
    "New York": 74.2,
    "San Francisco": 56.3,
    "Austin": 85.4
  }, { "date": "2012-09-07", "New York": 76, "San Francisco": 56.4, "Austin": 85.3 }, {
    "date": "2012-09-08",
    "New York": 77.1,
    "San Francisco": 56.5,
    "Austin": 81.9
  }, { "date": "2012-09-09", "New York": 69.7, "San Francisco": 56.4, "Austin": 74.8 }, {
    "date": "2012-09-10",
    "New York": 67.8,
    "San Francisco": 55.4,
    "Austin": 71.6
  }, { "date": "2012-09-11", "New York": 64, "San Francisco": 56.2, "Austin": 75.9 }, {
    "date": "2012-09-12",
    "New York": 68.1,
    "San Francisco": 55.7,
    "Austin": 82.1
  }, { "date": "2012-09-13", "New York": 69.3, "San Francisco": 54.3, "Austin": 80.5 }, {
    "date": "2012-09-14",
    "New York": 70,
    "San Francisco": 55.2,
    "Austin": 70
  }, { "date": "2012-09-15", "New York": 69.3, "San Francisco": 54.3, "Austin": 71.2 }, {
    "date": "2012-09-16",
    "New York": 66.3,
    "San Francisco": 52.9,
    "Austin": 70.3
  }, { "date": "2012-09-17", "New York": 67, "San Francisco": 54.8, "Austin": 72.1 }, {
    "date": "2012-09-18",
    "New York": 72.8,
    "San Francisco": 54.8,
    "Austin": 73.7
  }, { "date": "2012-09-19", "New York": 67.2, "San Francisco": 56.8, "Austin": 72.7 }, {
    "date": "2012-09-20",
    "New York": 62.1,
    "San Francisco": 55.4,
    "Austin": 71.7
  }, { "date": "2012-09-21", "New York": 64, "San Francisco": 55.8, "Austin": 72.9 }, {
    "date": "2012-09-22",
    "New York": 65.5,
    "San Francisco": 55.9,
    "Austin": 73.1
  }, { "date": "2012-09-23", "New York": 65.7, "San Francisco": 52.8, "Austin": 75.6 }, {
    "date": "2012-09-24",
    "New York": 60.4,
    "San Francisco": 54.5,
    "Austin": 78.3
  }, { "date": "2012-09-25", "New York": 63.2, "San Francisco": 53.3, "Austin": 78.3 }, {
    "date": "2012-09-26",
    "New York": 68.5,
    "San Francisco": 53.6,
    "Austin": 79.6
  }, { "date": "2012-09-27", "New York": 69.2, "San Francisco": 52.1, "Austin": 76.4 }, {
    "date": "2012-09-28",
    "New York": 68.7,
    "San Francisco": 52.6,
    "Austin": 77.2
  }, { "date": "2012-09-29", "New York": 62.5, "San Francisco": 53.9, "Austin": 75.2 }, {
    "date": "2012-09-30",
    "New York": 62.3,
    "San Francisco": 55.1,
    "Austin": 71.9
  }]